What is the definition of a healthy individual?

The definition of a healthy individual is best encapsulated by the absence of disease and illness. This perspective aligns with a holistic view of health that considers physical, mental, and social well-being rather than merely the absence of physical ailments. A healthy individual may experience well-being characterized by maintaining good bodily functions, having a balanced psychological state, and achieving social stability.

While certain physical fitness metrics, such as body fat percentage, strength levels, or running speed, can be indicators of health or fitness levels, they do not encompass the full spectrum of what it means to be healthy. Health is multi-dimensional, extending beyond just physical capabilities or measurements. Therefore, focusing solely on disease and illness makes the definition comprehensive and applicable to a broader range of populations and health conditions.